I choose this answer because in most recent times humans build over environments as well as sometime accidentally causing arson which destroys possibly a whole ecosystem following many different animals.
The most recent extinction is widely believed to have been as a result of the collision of a comet/Asteroid with the earth crust. This left a massive crater on the earth surface in the region of Yucatan Peninsula at the Gulf of Mexico.
The collision affected the earth's climate severely and affected life on the earth in general. The temperature warmed and dunes of dust particles rose up to blanket the atmosphere.
The extinction is known as the Cretaceous-Paleogene, K-T extinction. It marked the beginning of the Cenozoic era and the end of the mesozoic.
The K-T extinction occurred about 66million years ago and a remarkable 75% of all organisms were wiped out. Notably was the non-avian dinosaurs. Some birds, mammals, fishes were wiped out. This extinction also birthed new species.
a divergent tectonic plate or constructive plate boundary located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world.
4) The rate of species extinction is lower on the small island than on the large island.
Explanation:
The theory of island biogeography suggested that because of the size and links to the mainland. Fewer species that are not from the island will invade because the distance from the mainland is greater. The threat of extinction due to this is low. The small island also has a lower capacity for different species due to limited resources. This would mean that there are simply fewer species to go extinct.
